Title: Synthesis of a Novel Chelating Agent and Research on Its Chelating Performance of Cobalt(II) Ions
Abstract: A novel chelating agent,which can be used to recovery noble metal ions,was synthesized via nitration reaction using p-thiophenol as raw materials in the mixture of methylene chloride and ethanol.Research results showed that in the nitration reaction the maximum yield was 48.5% under the conditions as follows:the molar ratio of concentrated nitric acid to p-thiophenol 4∶1,reaction temperature 15 ℃ and reaction time 3 h;when different mass of chelating agent was used to process chelating experiment with 5 mL leaching solution of spent Li-ion batteries which contained 1 681 mg/L Co2+,the chelating ratio reached 98.7% when the mass of chelating agent was 0.3 g;and the maximum of release ratio reached 83.6% when 8 mol/L of hydrochloric acid solution was used to de-adsorption.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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